#### Study sets matching "statistics chapter 4"

#### Study sets matching "statistics chapter 4"

Event

Simple Event

Sample Space

P

any collection of results or outcomes of a procedure

an outcome or an event that cannot be further broken down int…

for a procedure consists of all possible simple events; that…

denotes a probability.

Event

any collection of results or outcomes of a procedure

Simple Event

an outcome or an event that cannot be further broken down int…

Bi-variate Data

Response Variable

Explanatory/Predictor Variable

Scatter Diagram

Data in which two variables are measured on an individual

The variable whose value can be explained by the value of the…

The variable whose value explains the response variable

A graph that shows the relationship between two quantitative…

Bi-variate Data

Data in which two variables are measured on an individual

Response Variable

The variable whose value can be explained by the value of the…

comparison test for linear correlation

correlation coefficient

scatterplot

response variable

helps determine whether the correlation coefficient is strong…

measures the strength of the linear association between two v…

plot of the values of y, the response variable, vs the corres…

y variable in regression analysis; dependent; outcome

comparison test for linear correlation

helps determine whether the correlation coefficient is strong…

correlation coefficient

measures the strength of the linear association between two v…

Population

Sample

Sample Survey

Convenience Sample

The ... in a statistical study is the entire group of individ…

A subset of individuals in the population from which we actua…

A study that uses an organized plan to choose a sample that r…

Choosing individuals from the population who are easy to reac…

Population

The ... in a statistical study is the entire group of individ…

Sample

A subset of individuals in the population from which we actua…

Bias

Census

Cluster sample

Convenience sample

The design of a statistical study shows bias if it systematic…

A study that attempts to collect data from every individual i…

To take a cluster sample, first divide the population into sm…

A sample selected by taking the members of the population tha…

Bias

The design of a statistical study shows bias if it systematic…

Census

A study that attempts to collect data from every individual i…

Population

Sample

Sample survey

Convenience sample

in a statistical study is the entire group of individuals abo…

is the part of the population from which we actually collect…

A study that asks questions of a sample drawn from some popul…

choosing individuals who are easiest to reach.

Population

in a statistical study is the entire group of individuals abo…

Sample

is the part of the population from which we actually collect…

Population

Sample

Sample survey

Convenience sample

in a statistical study is the entire group of individuals abo…

is the part of the population from which we actually collect…

A study that asks questions of a sample drawn from some popul…

choosing individuals who are easiest to reach.

Population

in a statistical study is the entire group of individuals abo…

Sample

is the part of the population from which we actually collect…

Bayes Theorem

Multiplication of Probabilities(And)

Addition of Probablilities(Or)

Mutually Exclusive events

Based on conditions that might be related to the event. P(A|B…

N means multiply

U means add

Bayes Theorem

Based on conditions that might be related to the event. P(A|B…

Multiplication of Probabilities(And)

N means multiply

Population

Sample

Sample Survey

Convenience Sample

The entire group of individuals about which we want information

The part of the population from which we actually collect inf…

A survey which is carried out using a sampling method, i.e. i…

Choosing individuals who are easiest to reach...almost guaran…

Population

The entire group of individuals about which we want information

Sample

The part of the population from which we actually collect inf…

Experiment

Sample space

Tree diagram

Event

An activity in which there are at least two possible outcomes…

S': a listing of all possible outcomes, using set notation

A visual road map of possible outcomes in an experiment

Any collection of outcomes from an experiment

Experiment

An activity in which there are at least two possible outcomes…

Sample space

S': a listing of all possible outcomes, using set notation

Random Variable

Discrete

Continuous

Discrete probability distribution

x represents a numerical value associated with each outcome o…

A variable is discrete if it has finite or countable number o…

If the variable has an uncountable number of possible outcome…

Lists each possible value the random variable can assume, tog…

Random Variable

x represents a numerical value associated with each outcome o…

Discrete

A variable is discrete if it has finite or countable number o…

Population

Sample

Sample Survey

Convenience Sample

The entire group of individuals we want to know about. For ex…

A subset of individuals in the population from which we actua…

Sample survey is a study in which you obtain data from a subs…

Choosing individuals from the population who are easy to reac…

Population

The entire group of individuals we want to know about. For ex…

Sample

A subset of individuals in the population from which we actua…

Random Variable

A random variable is ________ if its p…

A random variable is _________ if its…

Probability distribution

a numerical variable associated with the outcomes of a random…

discrete

continuous

of a discrete random variable x is a list (or description) of…

Random Variable

a numerical variable associated with the outcomes of a random…

A random variable is ________ if its p…

discrete

Sampling errors

Random sampling error

Nonsampling errors

Undercoverage

are errors caused by the act of taking a sample. They cause s…

is the deviation between the sample statistic and the populat…

are errors not related to the act of selecting a sample from…

occurs when some groups in the population are left out of the…

Sampling errors

are errors caused by the act of taking a sample. They cause s…

Random sampling error

is the deviation between the sample statistic and the populat…

Mean

Median

Mode

Range

average; is computed by summing the observations and dividing…

the observation that falls in the middle. it's calculated by…

the observation that occurs with the greatest frequency

= Largest observation- Smallest observation

Mean

average; is computed by summing the observations and dividing…

Median

the observation that falls in the middle. it's calculated by…

Bias

Census

Cluster sample

Convenience sample

When a statistical study systematically favors certain outcom…

A study that attempts to collect data from every individual i…

To take a cluster sample, first divide the population into sm…

A sample selected by taking the members of the population tha…

Bias

When a statistical study systematically favors certain outcom…

Census

A study that attempts to collect data from every individual i…

Stratification

Stratified random sampling

Cluster Sample

Two Stage sampling

A classification of the units in the population into homogeno…

Stratifying the population and then taking a simple random sa…

When the units in the population are assigned to non-overlapp…

A sampling procedure that involves two steps. For example, ta…

Stratification

A classification of the units in the population into homogeno…

Stratified random sampling

Stratifying the population and then taking a simple random sa…

Population

Sample

Sample Survey

Convenience Sample

The entire group of individuals about which we want information

The part of the population from which we actually collect inf…

A survey which is carried out using a sampling method, i.e. i…

Choosing individuals who are easiest to reach...almost guaran…

Population

The entire group of individuals about which we want information

Sample

The part of the population from which we actually collect inf…

What is the population in a statistica…

What is the sample in a statistical st…

What is a convenience sample, and why…

What is a bias?

the entire group of individuals about which we want information

part of the population from which we actually collect informa…

choosing individuals who are easiest to reach results. Howeve…

design of a statistical study that systematically favors cert…

What is the population in a statistica…

the entire group of individuals about which we want information

What is the sample in a statistical st…

part of the population from which we actually collect informa…

Random variable x

Discrete

Continuous

Discrete probability distribution

Represents a numerical value associated with each outcome of…

When a random variable has a finite or countable number of po…

When a random variable has an uncountable number of possible…

A list of each possible value the random variable can assume,…

Random variable x

Represents a numerical value associated with each outcome of…

Discrete

When a random variable has a finite or countable number of po…

scatterplot

positive linear relationship

negative linear relationship

no apparent relationship

a graph of points (X.,Y) each of which ... represent one observ…

X increases, y also tends to increase

X increases, Y tend to decease

X increases , Y tends to remain unchanged

scatterplot

a graph of points (X.,Y) each of which ... represent one observ…

positive linear relationship

X increases, y also tends to increase

Probability

Experiment

Sample Space

Sample Point

A numerical measure of the likelihood that an event will occur

A process that generates well-defined outcomes

The set of all experimental outcomes

An element of the sample space. This represents an experiment…

Probability

A numerical measure of the likelihood that an event will occur

Experiment

A process that generates well-defined outcomes

Scatter Diagram

Explanatory Variable

REsponse Variable

Correlation Coefficient

A graph in which the values of two variables are plotted alon…

First variable in the pair (x).

Second variable in the pair (y).

A numerical value that measures the strength of a linear rela…

Scatter Diagram

A graph in which the values of two variables are plotted alon…

Explanatory Variable

First variable in the pair (x).